Heater



B. B. KAHN.

HEATER. APPLICATION FILED DEc.23, |918.

1,337,708. Patented Apr. 20, 1920.

UNITED sTATEs PATENT oEEIcE.

BERTRAND B. KAI-IN, 0F CINCINNATI, OHIO, ASSIGNOR TO THE ESTATE STOVE COMPANY, OF HAMILTON, OHIOv HEATER.

Specification of Letters Patent. Patenwtd A131. 20, 1920.

'Application filed becember 23, 1918. Serial No. 267,968.

To all whom t may-concern:

Be it known that I, jBEnTREND BIIAHN, a citizen'o'f 'the 'United States, residing at Cincinnati, Hamilton county, Ohio,l have invented certain new` and useful Improvements in Heaters, of which the following a specification. v

This invention pertains to heaters designed for the employment of either gaseous or solid fuel and the improvements will be readily understood from thev following description taken in connection with the accompanying drawing in which Figure 1 is a front' elevation illustrating an embodiment of my improvements:

Fig. 2 a rear elevation of the same:

Fig. 3 a vertical section in the plane of line c-c of Figs. 1, 2, 4, 5 and 6:

Fig. 4, a plan:

Fig. 5 a horizontal section inthe plane vof line b-b of Fig. 3:

Fig. 6 a horizontal section in the plane of line z-a of Fig. 3; and o Fig. 7 an elevation of a portion of one of the walls of the lire-pot. In the drawing:-

1, indicates the front wall of the body of the heater, which is generally rectangular in horizontal section:

2, the back wall of thesame:

3, the fire-door:

4, the ash-pit door:

5, the fire-pot disposed within the body of the heater below the level of the "iredoor and above the level of the ash-pit door, and formed of four separable walls, the rear and front walls being provided with ports S:

6, a pair of straight burner pipes extending sidewise through the body of the heater outside of and at the base of the front and rear walls of the fire-pot, these burner-pipes having jet holes, adapted to jet into the fire-pot through the ports in the bases of its front and rear walls:

7 the grate, disposed at the base of the fire-pot:

8, the ports previously referred to as being formed in the bases of the front and rear walls of the fire-pot, these ports being opposite the j et holes in the burner-pipes:

9, the ash-pit, below the grate:

10, the smoke outlet for the products of combustion, this smoke outlet being located at the rear of the top of the heater:

11, a. Wall extending from side to side of the body of the heater, inwardly of its back wall, this wall being located exterior to but against the rear wall of the fire-pot, and

extending from the base of the stove-body to a point below the levelof the smoke outlet: l

12, a fresh air flue open at its base,A and formed between wall 11 and the back wall of the heater, this flue extending entirely from side to side of the body of the heater and extending from the base of the heater and having its roof below the smoke outlet 10 from the heater, which roof extends entirely across the stove from side to side:

13, a hot air vflue .open at the top of the heater and joining the front upper portion offiue 12:

14, a perforated cover for flue 13:

15, passa-ges at each side of flue 13 placing the fire-pot in communication with the smoke outlet 10 as seen in Figs. 3 and 6:

16, the space to the rear of flue 13, placing the smoke outlet in communication with the passages 15 at the sides of flue 13:

17, a gas supply-pipe extending rfore and aft at one side of the exterior of the heater:

18, mixers at the ends of the burner-pipe, jetted into by suitable controlling nozzles connected with the gas supply-pipe:

19, holes through the back wall 12, above the level of the burner-pipes: and

20, supporting bars disposed at the inside of each side of the heater and having their ends resting on lugs on wall 11 and the front Wall of the heater, these bars being disposed below the base of the fire-pot.

The bars 2() are separably supported in the body of the heater andthe front and rear walls of the fire-pot rest upon them, the two burner-pipes resting on seats formed on the ends of the bars exterior to the front and rear walls of the fire-pot. rl`he grate, which may be horizontally pivoted, fits endwise between these bars and its fore and aft dimensions are such that it may be tilted in dumping the contents of the fire-pot.

In burning solid fuel, the fuel is placed in the fire-pot, through the fire-door, and the products of combustion find their way to the smoke outlet through passages 15 and space 16. Fresh air enters the base of flue 12 and discharges through perforations cf cover 14. This air serves, in `efreat measure, to insulate the back wall 2 of the heater and prevent much of the radiation therefrom. Wall 11 is dished rearwardly at the rear burner-pipe, thus narrowing flue l12, under' which circumstances holes 19 become useful in admitting air to the back flue in spite of the restrictions produced by the dishing which has been mentioned.' rlheV presence of air flue 12, extending as it does from the base of the Vheater to the base of space 16, which is well above the level ofl `through the ports 8. The products of combustion leaving the fire-pot reach the smoke outlet bythe passages 15 and space' 16, the air I'iue lserving, as before, to insulatethe backof the heater, Ythe radiation'being coninedwmainly to' itsfront and side walls,

the air passing through this flue discharging at. fperforations .14ev and* receiving` heat through wall 11 and the surrounding walls of flue 18. Y

1. The combination `with the front, side, and back walls of a heater having an upper smoke outlet, of an inner transversewall extendingv the width of the heaterstructure and spaced from the back wall to form a fresh air flueV open at the bottom of the heater, anl upper central hot air fluel forming a continuation of said fresh air flue, and a rear smoke chamber formedvin thehcater Vabove said transverse wall andcommuniand back .walls of a heater having an upper smokeoutlet, of Van` inner transverse-wall extending the ywidth ofv the heater structure and spaced romthe back-.wall'to form a fresh air flue open at thebottom. of the heater, Van upper central hotair flueforming-a continuation ofsaidr fresh air flue, and a rear smoke ehamberformed inthe heater above said transverse wall andcommunicating with the interior of the heateraronnd said hot air flue, opposed; lugs onsaid lfront and transverse walls and supporting bars resting on said lugs, a fire pot having its top engaging the front and transverse walls and resting on said bars, burner-pipes on said bars betweenthe front wall andv fire pot and transverse wall and firepot, a grate at the base of the re'pot, andsaid burner pipes adapted to dischargethrough ports in the fire pot.

BERTRAND B. KAHN. Witnesses: v n

M. S; BELnEN, Y,

ALLEN ANDREWS, J r. 

